Device for releasing medication for alimentary tract at fixed point

A release device and alimentary canal technology, applied in drug delivery, drug equipment, medical formula, etc., can solve problems such as the inability to push the movement of the liquid storage chamber, the difficulty of filling the liquid storage chamber with drugs, and the inability to act on the array of sharp objects. , to achieve the effects of easy assembly and manufacture, simple structure, and high release reliability

Inactive Publication Date: 2005-03-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device has the following disadvantages. First, the friction between the expanded liquid medicine storage chamber and the inner wall of the shell is relatively large, and the driving force of the spring may not be able to push the liquid medicine storage chamber to move, and c

Method used

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  • Device for releasing medication for alimentary tract at fixed point
  • Device for releasing medication for alimentary tract at fixed point
  • Device for releasing medication for alimentary tract at fixed point

Examples

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Example Embodiment

[0023] A fixed-point release device for gastrointestinal drugs, including an external remote control mechanism [1] and a swallowable electronic capsule [2]. The electronic capsule [2] includes a housing [3], a battery [4], a remote control module [5], and a spring [6], piston [7], drug release channel mechanism [8], positioning mark source [9], the cavity between the piston [7] and the drug release channel mechanism [8] constitutes a drug storage bin [12].

[0024] The drug release channel mechanism [8] includes a circular through hole [14] and a circular elastic sealing plug [15]. The circular through hole [14] has a diameter between 3mm and 10mm and a length between 1mm and 5mm; The circular elastic sealing plug [15] is between 3mm and 10mm in diameter and between 1mm and 5mm in length; the circular elastic sealing plug [15] is placed in the circular through hole [14] in a sealed fit state, and the circular through hole The friction force between the hole [14] and the circular e...

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Abstract

A localizable medicine releasing device for digestive tract is composed of an external remote controller, and an electronic capsule which consists of shell, battery, remotelly controlled module with a miniature heating element, stressed spring, piston fixed by a polymer thread, medicine chamber, medicine releasing channel, and locating marker source. When said remotely controlled module receives a control signal its miniature heating element can fuse off the polymer thread of piston and under the action of stressed spring the piston is moving to open the medicing releasing channel for releasing medicine.

Description

Technical field: [0001] The present invention relates to a fixed-point release device for digestive tract medicine, in particular to a pill-type swallowable fixed-point release device for digestive tract medicine, which is used to release substances in the digestive tract of animals or human bodies, such as medicine, food, markers Wait. Background technique: [0002] In U.S. Patent No. 4,425,117, a device for releasing substances at designated positions in the digestive tract is proposed. There is a needle at the end of the moving mechanism; the second small chamber is a medicine storage bin with small holes around it, and the medicine is packaged in a small balloon and put into the medicine storage bin; there is a fixed baffle in the middle of the device to separate the two small chambers . When the device reaches the designated position of the digestive tract, an electromagnetic wave signal is sent from the outside, and the coil and oscillation circuit in the housing of ...

Claims

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Application Information

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IPC IPC(8): A61D7/00A61J3/07A61M31/00
CPCA61M31/00
Inventor 郑小林皮喜田彭承琳侯文生崔建国樊华吴旭东
Owner CHONGQING UNIV
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